from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • proper noun A taxonomic class within the subphylum Radiozoa — including numerous minute marine species. The skeleton is composed of silica, and is often very elegant in form and sculpture. Many have been found in the fossil state..


from Wiktionary, Creative Commons Attribution/Share-Alike License

New Latin, Ancient Greek πολύς (polys, "many") + κύστις (kustis, "bladder") + -ina


Help support Wordnik (and make this page ad-free) by adopting the word Polycystina.


  • With regard to organisms, however, the wonderful Acanthometræ and the Polycystina may be mentioned as presenting complexities of form which can hardly be thought to be due to other than _internal_ causes.

    On the Genesis of Species

  • No power on earth can make these little urns of the _Polycystina_ except

    Natural Law in the Spiritual World


Log in or sign up to get involved in the conversation. It's quick and easy.